Comment on Math is not linear, so why do we teach it like that?Comments−robertk16yHer rectangle problem is wrong. Here are four rectangles with the same area and perimeter:x = 3, y = 6; x = 4, y = 4; x = 5, y = 10/3; x = 7, y = 14/5The formula is fix x > 2 (one side), let y = 2x / (x-2) (other side). Derived from xy = 2x + 2y.−gort16yAs I recall the problem was not "there aren't any" but "there aren't any more"
Comments
Her rectangle problem is wrong. Here are four rectangles with the same area and perimeter:
x = 3, y = 6; x = 4, y = 4; x = 5, y = 10/3; x = 7, y = 14/5
The formula is fix x > 2 (one side), let y = 2x / (x-2) (other side). Derived from xy = 2x + 2y.
As I recall the problem was not "there aren't any" but "there aren't any more"